Question

What substances are likely to be found in hard water?

Answer 1

Hard water is water containing high amounts of mineral ions. The most common ions found in hard water are the metal cations calcium (Ca2+) and magnesium (Mg2+), though iron, aluminum, and manganese may also be found in certain areas. These metals are water soluble, meaning they will dissolve in water.

Answer 2

Ammonia or phosphate salts of long chain Carboxylic acids

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